Property talk:P458

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IMO ship number
identifier for a ship, ship owner or ship manager per the International Maritime Organization

Description	International Maritime Organization (IMO) number is a unique identifier for ships - International Maritime Organization (Q201054).
Represents	IMO number (Q1970938)
Data type	External identifier
Template parameter	en:template:Infobox ship career : Ship identification
Domain	According to this template: ships - watercraft (Q1229765) According to statements in the property: watercraft (Q1229765), business (Q4830453) or navy (Q4508) When possible, data should only be stored as statements
Allowed values	[1-9]\d{6}
Example	Queen Elizabeth 2 (Q1244204) → 6725418 FSO Asia (Q19364025) → 9224752
Source	https://en.wikipedia.org/wiki/Category:IMO_Number https://en.wikipedia.org/wiki/IMO_number#Ship_Identification_Number https://commons.wikimedia.org/wiki/Category:Ships_by_IMO_number
Formatter URL	https://gisis.imo.org/Public/SHIPS/ShipDetails.aspx?IMONumber=$1 (Requires free account and login)
Tracking: usage	Category:Pages using Wikidata property P458 (Q26869547)
See also	MMSI (P587), ENI number (P5910)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Complex constraint violations/P458 Database reports/Constraint violations/P458 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 94,418 Main statement 94,408 >99.9% of uses Qualifier 4 <0.1% of uses Reference 6 <0.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Format “[0-9]\d{6}|”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P458#Format, hourly updated report, SPARQL

Single value: this property generally contains a single value. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Thor (Q29654241)
List of violations of this constraint: Database reports/Constraint violations/P458#Single value, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P458#Unique value, SPARQL (every item), SPARQL (by value)

Type “watercraft (Q1229765), business (Q4830453), navy (Q4508)”: item must contain property “instance of (P31)” with classes “watercraft (Q1229765), business (Q4830453), navy (Q4508)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P458#Type Q1229765, Q4830453, Q4508, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P458#Entity types

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P458#Scope, SPARQL

Validate IMO-numbers
Report ships or shipping lines with incorrect IMO-numbers, found by validating the checksum (Help)
Violations query: SELECT ?item # ?itemLabel ?imonr ?checksum ?checksum2 WITH { SELECT DISTINCT * WHERE { ?item wdt:P458 ?imonr . FILTER(strlen(?imonr) = 7) BIND(xsd:integer(substr(?imonr, 1, 1))*7 + xsd:integer(substr(?imonr, 2, 1))*6 + xsd:integer(substr(?imonr, 3, 1))*5 + xsd:integer(substr(?imonr, 4, 1))*4 + xsd:integer(substr(?imonr, 5, 1))*3 + xsd:integer(substr(?imonr, 6, 1))*2 AS ?checksum) BIND(substr(str(?checksum), strlen(str(?checksum)), 1) AS ?checksum2) FILTER(substr(?imonr, 7, 1) != ?checksum2) } } AS %i WHERE { INCLUDE %i SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" . } }
List of this constraint violations: Database reports/Complex constraint violations/P458#Validate IMO-numbers

This property is being used by: ca:Plantilla:Infotaula vaixell no:Mal:Infoboks skip, no:Mal:Infoboks skip/testtilfeller, no:Mal:Bøtte og spade pt:Predefinição:Info/Navio/Testes ru:Шаблон:Судно/Служба tt:Калып:Кораб/Хезмәт eu:Txantiloi:Objektu infotaula fr:Modèle:Infobox Navire Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Official IMO resolver

I set formatterUrl to https://gisis.imo.org/Public/SHIPS/ShipDetails.aspx?IMONumber=$1 as Preferred because that's the official site. But because of the problem below, I'll now set it to Deprecated.

Reported at https://webaccounts.imo.org/Common/ContactUs.aspx

GISIS login is broken.

When I try to get to a ship record eg https://gisis.imo.org/Public/SHIPS/ShipDetails.aspx?IMONumber=5121952

it gets into an authorization loop with https://login.microsoftonline.com/

 Request Id: e4bf6fc6-797d-46bc-b09e-c3371e9a2000
 Correlation Id: 78272eaf-c042-4e25-98b3-c87914dcadf0
 Timestamp: 2021-01-04T09:09:45Z
 Message: AADSTS50196: The server terminated an operation because it encountered a client request loop. Please contact your app vendor.

This despite the fact that I'm logged to https://webaccounts.imo.org/Public/Default.aspx !

This is an urgent problem, please fix it soon!

I've set your site as IMO resolver (formatterUrl) at https://www.wikidata.org/wiki/Property:P458 , but I'll have to now set it to "deprecated" status because of this problem.

--Vladimir Alexiev (talk) 09:17, 4 January 2021 (UTC)

PS: I got this error while trying to submit feedback, so I posted on Twitter instead: https://twitter.com/valexiev1/status/1346024426966552576

SmtpException: Mailbox unavailable. The server response was:
The from address does not match a verified Sender Identity.
Mail cannot be sent until this error is resolved.
Visit https://sendgrid.com/docs/for-developers/sending-email/sender-identity/ to see the Sender Identity requirements

Could we please change the preferred formatter URL back to Marinetraffic.com? The IMO site requires login which is annoying, and forces people to cut and paste manually. Infrastruktur (talk) 21:19, 25 January 2023 (UTC)

Type constraint

Currently, this property is set up for single usage, but ships can change their name while the IMO is kept throughout the hull's life. I think it should therefore be possible to enter the IMO number at multiple items that treat different names of the same ship hull. De728631 (talk) 21:18, 20 August 2021 (UTC)

Apparently there is already an open query. De728631 (talk) 18:26, 21 August 2021 (UTC)